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• Clinical Article •
Comparison of 3D non-contrast enhanced foot MR angiography using steady-state free precession with single and multi-directional FSD modules preparation
ZHAO Junxiong  QI Yulong  FENG Fei  LIU Yang  ZHANG Na 

Cite this article as: Zhao JX, Qi YL, Feng F, et al. Comparison of 3D non-contrast enhanced foot MR angiography using steady-state free precession with single and multi-directional FSD modules preparation. Chin J Magn Reson Imaging, 2019, 10(9): 685-689. DOI:10.12015/issn.1674-8034.2019.09.009.


[Abstract] Objective: To compare the image quality of pedal arteries acquired from three-dimensional (3D) non-contrast enhanced magnetic resonance angiography (NCE-MRA) using steady-state free precession (SSFP) sequence with single directional and multi-directional flow-sensitive dephasing (FSD) modules preparation, respectively.Materials and Methods: A total of 32 healthy volunteers and 3 patients with diabetes prospectively underwent 3D NCE-MRA applying ECG (Electrocardiograph)-triggered SSFP sequence with single directional and two directional FSD modules successively in pedal arteries at a 1.5 T MR scanner. Number of diagnostic arterial segments, signal-to-noise ratio (SNR) of pedal artery, contrast-to-noise ratio (CNR) between pedal artery and surrounding muscle, vessel sharpness, and image quality on a four point score of three main segments (dorsal artery, lateral plantar artery, and pedal arch) were statistically compared for the two techniques.Results: No significant difference existed in number of diagnostic arterial segments, SNR, CNR, and vessel sharpness of NCE-MRA images acquired from SSFP sequence with one FSD module applied in only readout direction and two FSD modules applied in both readout and partition-encoding directions (P>0.05). The image quality scores of NCE-MRA with single directional FSD module was higher than that with two directional FSD modules. However, pedal arch not displayed completely in full length in some images acquired with single directional FSD module was delineated well in images acquired with two directional FSD modules.Conclusions: NCE-MRA using SSFP with multi-directional FSD module could display the pedal arterial segments better than that with only single directional FSD module.
[Keywords] arteries；foot；diabetes complications；magnetic resonance angiography

ZHAO Junxiong* Department of Radiology, the Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen 518033, China

QI Yulong Department of Radiology, Peking University Shenzhen Hospital, Shenzhen 518036, China

FENG Fei Department of Radiology, Peking University Shenzhen Hospital, Shenzhen 518036, China

LIU Yang Department of Radiology, Peking University Shenzhen Hospital, Shenzhen 518036, China

ZHANG Na Research Center for Biomedical Imaging Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China

*Correspondence to: Zhao JX, E-mail: 2324924770@qq.com

Conflicts of interest   None.

Received  2019-03-16
Accepted  2019-06-25
DOI: 10.12015/issn.1674-8034.2019.09.009
Cite this article as: Zhao JX, Qi YL, Feng F, et al. Comparison of 3D non-contrast enhanced foot MR angiography using steady-state free precession with single and multi-directional FSD modules preparation. Chin J Magn Reson Imaging, 2019, 10(9): 685-689. DOI:10.12015/issn.1674-8034.2019.09.009.

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